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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The maximum steam pressure in a Locomotive boiler is limited to

18 MN/m²
180 MN/m²
1.8 MN/m²
0.18 MN/m²

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of brake power to the indicated power is known as

Mechanical efficiency
Indicated thermal efficiency
Brake thermal efficiency
Overall efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The change in internal energy in steam engines equals to

Work done during adiabatic expansion
Change in enthalpy
Work done during compression
Work done during the Rankine cycle

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Steam Boilers, Engines, Nozzles and Turbines
Steam turbines may be classified according to

Direction of steam flow
Number of stages
Mode of steam action
All of these

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Steam Boilers, Engines, Nozzles and Turbines
O₂ content in atmospheric air on volume basis is

0.23
0.21
0.3
0.4

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Steam Boilers, Engines, Nozzles and Turbines
The effect of friction in the nozzle ___ dryness fraction of steam.

None of the listed here
Decreases
Has no effect on
Increases

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